zgrat | 8efce4180ae0e0f3c75dd2e13e44288c4352223f4b556c43bbb5cb96f8aec3ee

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2023 10:33

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General

Target

d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
Size

2.3MB
MD5

d92e6b60eecc9c96a1ad74e2d5c9ccba
SHA1

d7fcb40fa9a63dfaef531600da64c135d3079bd2
SHA256

8efce4180ae0e0f3c75dd2e13e44288c4352223f4b556c43bbb5cb96f8aec3ee
SHA512

ef9430611ea5b79108481cfa80961c569f0e2df82503afedff382f4f9bb0ed8227687a46b1c4e14af5692d81031b17c0c2bdb19bfac59cc59f3c3b099a332f37
SSDEEP

24576:FD+2lLAnMrJAmvGlBla8SmYU05za8oq9xKG+K/jAnKeL5qTZBHR1k85onek0nn15:FLuMNdGddGxsKrAEZZR1KneNBL2NuW

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4768-7-0x0000000002DD0000-0x0000000002E48000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-11-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-21-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-43-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-67-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-71-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-69-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-65-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-63-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-61-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-59-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-57-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-55-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-53-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-51-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-49-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-47-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-45-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-41-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-39-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-37-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-35-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-33-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-31-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-29-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-27-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-25-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-23-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-19-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-17-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-15-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-13-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-9-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1
behavioral2/memory/4768-8-0x0000000002DD0000-0x0000000002E42000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WScript.exed92e6b60eecc9c96a1ad74e2d5c9ccba.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe

Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

1328 RegAsm.exe

pid	process
1328	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d92e6b60eecc9c96a1ad74e2d5c9ccba.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Steam = "\"C:\\Users\\Admin\\AppData\\Roaming\\Programs\\Steam.exe\""	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

RegAsm.exe

pid process

1328 RegAsm.exe
1328 RegAsm.exe
1328 RegAsm.exe
1328 RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

d92e6b60eecc9c96a1ad74e2d5c9ccba.exe

description pid process target process

PID 4768 set thread context of 1328 4768 d92e6b60eecc9c96a1ad74e2d5c9ccba.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1328	RegAsm.exe
1328	RegAsm.exe
1328	RegAsm.exe
1328	RegAsm.exe

description	pid	process	target process
PID 4768 set thread context of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe

Modifies registry class 1 IoCs

Processes:

d92e6b60eecc9c96a1ad74e2d5c9ccba.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000_Classes\Local Settings	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

d92e6b60eecc9c96a1ad74e2d5c9ccba.exepowershell.exe

pid	process
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
3872	powershell.exe
3872	powershell.exe
3872	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

d92e6b60eecc9c96a1ad74e2d5c9ccba.exepowershell.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
Token: SeDebugPrivilege	3872	powershell.exe
Token: SeShutdownPrivilege	1328	RegAsm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegAsm.exe

pid process

1328 RegAsm.exe
1328 RegAsm.exe

pid	process
1328	RegAsm.exe
1328	RegAsm.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

d92e6b60eecc9c96a1ad74e2d5c9ccba.exeWScript.exe

description	pid	process	target process
PID 4768 wrote to memory of 4864	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	WScript.exe
PID 4768 wrote to memory of 4864	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	WScript.exe
PID 4768 wrote to memory of 4864	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	WScript.exe
PID 4768 wrote to memory of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe
PID 4768 wrote to memory of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe
PID 4768 wrote to memory of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe
PID 4768 wrote to memory of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe
PID 4768 wrote to memory of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe
PID 4768 wrote to memory of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe
PID 4768 wrote to memory of 1328	4768	d92e6b60eecc9c96a1ad74e2d5c9ccba.exe	RegAsm.exe
PID 4864 wrote to memory of 3872	4864	WScript.exe	powershell.exe
PID 4864 wrote to memory of 3872	4864	WScript.exe	powershell.exe
PID 4864 wrote to memory of 3872	4864	WScript.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\d92e6b60eecc9c96a1ad74e2d5c9ccba.exe
"C:\Users\Admin\AppData\Local\Temp\d92e6b60eecc9c96a1ad74e2d5c9ccba.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4768

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Rbtqvuqexxqqfvkdqsvr.vbs"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4864

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Programs\Steam.exe'
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3872

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1328-2289-0x0000000074D40000-0x0000000074D79000-memory.dmp

Filesize
228KB

Download
memory/1328-2306-0x00000000750E0000-0x0000000075119000-memory.dmp

Filesize
228KB

Download
memory/1328-2303-0x00000000750E0000-0x0000000075119000-memory.dmp

Filesize
228KB

Download
memory/1328-2300-0x00000000750E0000-0x0000000075119000-memory.dmp

Filesize
228KB

Download
memory/1328-2297-0x00000000750E0000-0x0000000075119000-memory.dmp

Filesize
228KB

Download
memory/3872-2273-0x0000000004C70000-0x0000000004C80000-memory.dmp

Filesize
64KB

Download
memory/3872-2287-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3872-2281-0x0000000007700000-0x000000000770E000-memory.dmp

Filesize
56KB

Download
memory/3872-2283-0x0000000007810000-0x000000000782A000-memory.dmp

Filesize
104KB

Download
memory/3872-2284-0x00000000077F0000-0x00000000077F8000-memory.dmp

Filesize
32KB

Download
memory/3872-2282-0x0000000007710000-0x0000000007724000-memory.dmp

Filesize
80KB

Download
memory/3872-2260-0x000000007EEE0000-0x000000007EEF0000-memory.dmp

Filesize
64KB

Download
memory/3872-2262-0x0000000070CF0000-0x0000000070D3C000-memory.dmp

Filesize
304KB

Download
memory/3872-2279-0x0000000007750000-0x00000000077E6000-memory.dmp

Filesize
600KB

Download
memory/3872-2280-0x00000000076D0000-0x00000000076E1000-memory.dmp

Filesize
68KB

Download
memory/3872-2272-0x00000000067B0000-0x00000000067CE000-memory.dmp

Filesize
120KB

Download
memory/3872-2244-0x0000000004C70000-0x0000000004C80000-memory.dmp

Filesize
64KB

Download
memory/3872-2278-0x0000000007540000-0x000000000754A000-memory.dmp

Filesize
40KB

Download
memory/3872-2276-0x0000000007B10000-0x000000000818A000-memory.dmp

Filesize
6.5MB

Download
memory/3872-2277-0x00000000074D0000-0x00000000074EA000-memory.dmp

Filesize
104KB

Download
memory/3872-2274-0x0000000004C70000-0x0000000004C80000-memory.dmp

Filesize
64KB

Download
memory/3872-2275-0x0000000007390000-0x0000000007433000-memory.dmp

Filesize
652KB

Download
memory/3872-2261-0x0000000006770000-0x00000000067A2000-memory.dmp

Filesize
200KB

Download
memory/3872-2241-0x0000000004B60000-0x0000000004B96000-memory.dmp

Filesize
216KB

Download
memory/3872-2242-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3872-2259-0x0000000006250000-0x000000000629C000-memory.dmp

Filesize
304KB

Download
memory/3872-2258-0x00000000061A0000-0x00000000061BE000-memory.dmp

Filesize
120KB

Download
memory/3872-2243-0x0000000004C70000-0x0000000004C80000-memory.dmp

Filesize
64KB

Download
memory/3872-2257-0x0000000005CD0000-0x0000000006024000-memory.dmp

Filesize
3.3MB

Download
memory/3872-2246-0x0000000005990000-0x00000000059B2000-memory.dmp

Filesize
136KB

Download
memory/3872-2252-0x0000000005A40000-0x0000000005AA6000-memory.dmp

Filesize
408KB

Download
memory/3872-2245-0x00000000052B0000-0x00000000058D8000-memory.dmp

Filesize
6.2MB

Download
memory/4768-57-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-51-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-25-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-23-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-19-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-17-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-15-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-13-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-9-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-8-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-1117-0x0000000005720000-0x0000000005730000-memory.dmp

Filesize
64KB

Download
memory/4768-2222-0x0000000006850000-0x00000000068B6000-memory.dmp

Filesize
408KB

Download
memory/4768-2236-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/4768-29-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-31-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-33-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-35-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-37-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-39-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-41-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-45-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-47-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-49-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-27-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-53-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-55-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-1-0x00000000008F0000-0x0000000000B4C000-memory.dmp

Filesize
2.4MB

Download
memory/4768-59-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-61-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-63-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-65-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-69-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-71-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-78-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/4768-67-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-43-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-21-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-11-0x0000000002DD0000-0x0000000002E42000-memory.dmp

Filesize
456KB

Download
memory/4768-7-0x0000000002DD0000-0x0000000002E48000-memory.dmp

Filesize
480KB

Download
memory/4768-6-0x0000000006CC0000-0x0000000006E72000-memory.dmp

Filesize
1.7MB

Download
memory/4768-5-0x00000000056E0000-0x00000000056EA000-memory.dmp

Filesize
40KB

Download
memory/4768-4-0x0000000005720000-0x0000000005730000-memory.dmp

Filesize
64KB

Download
memory/4768-2-0x0000000005A30000-0x0000000005FD4000-memory.dmp

Filesize
5.6MB

Download
memory/4768-3-0x0000000005530000-0x00000000055C2000-memory.dmp

Filesize
584KB

Download
memory/4768-0-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

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